<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>创建博客</title>
    <link
      rel="stylesheet"
      href="https://cdn.bootcss.com/bootstrap/4.0.0/css/bootstrap.min.css"
      integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
      crossorigin="anonymous"
    />
    <link rel="stylesheet" href="./common.css" />
  </head>
  <body>

    <div class="container">
      <div class="row justify-content-md-center">
        <div class="col-lg-5 col-md-12">
          <h1 class="display-4">创建博客</h1>
          <form class="blog-list">
            <div class="form-group">
              <input
                type="text"
                class="form-control"
                id="text-title"
                placeholder="请输入文章标题"
              />
            </div>
            <div class="form-group">
              <textarea
                class="form-control"
                id="text-content"
                placeholder="请输入文章内容"
                rows="5"
              ></textarea>
            </div>

            <button
              type="button"
              class="btn btn-primary btn-lg btn-block"
              id="btn-create"
            >
              创建
            </button>
          </form>
        </div>
      </div>
    </div>

    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
    <script>
      // 发送 post 请求
      function post(url, data = {}) {
        return $.ajax({
          type: "post",
          url,
          data: JSON.stringify(data),
          contentType: "application/json"
        });
      }

      // 获取 dom 元素
      $textTitle = $("#text-title");
      $textContent = $("#text-content");
      $btnCreate = $("#btn-create");

      // 提交数据
      $btnCreate.click(() => {
        const title = $textTitle.val().trim();
        const content = $textContent.val().trim();
        if (title === "" || content === "") {
          alert("标题或内容不能为空");
          return;
        }

        const url = "/api/blog/new";
        const data = {
          title,
          content
        };
        post(url, data).then(res => {
          if (res.errno !== 0) {
            alert("操作错误");
            return;
          }
          alert("创建成功");
          location.href = "/admin.html";
        });
      });
    </script>
  </body>
</html>
